engineermike
Well-Known Member
Something else worth throwing into this discussion is the stock GT500 fuel pump bucket and line. These parts are surprisingly cheap from Ford, like $550 for the bucket and maybe $200 for the line. It's similar to the GT350 bucket but the pumps are bigger. The line is needed because it has the inline fuel filter that resides under the car. This stock pump setup supports a lot of power in the GT500 world. The only challenge is the wiring. We drew out a wiring diagram to use a pair of stock FPDM's driven by the single PWM output from the PCM and no harness splicing. After doing testing, I believe the amp draw of the pair of pumps would be less than a single DW400/BAP due to much higher pump efficiency, which means you could run both off a single FPDM. The only unknown is if the resistance would be too low and the FPDM may interpret that as a fault. However, I don't think this would be the case based on the high current draw of the DW400.
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